Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1744Generated: October 26, 2026

Quinaldic Acid → 3-Benzyloxy-6-(2-propyloxy)quinoline-2-carboxylic acid

https://huagongshe.com/reaction/1744

Reaction equation

Participants

RoleNameHCIDCharge
ReactantQuinaldic AcidHCID 7124—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantO-benzylglycine toluene-p-sulphonateHCID 6451311—
ReactantEthylacetate heptaneHCID 21899848—
SolventDichloromethaneHCID 6344—
Product3-Benzyloxy-6-(2-propyloxy)quinoline-2-carboxylic acidHCID 53779731129.7%

Reaction Steps

2.7 g (8 mmol) of the above quinolinecarboxylic acid were reacted with 2.7 g (8 mmol) of glycine benzyl ester tosylate, 4.4 ml (32 mmol) of NEM, 1.35 g (10 mmol) of HOBT and 3.6 g (8.8 mmol) of CMC in 300 ml of anhydrous methylene chloride at 20° C. for 24 hours, analogously to Example 25g). After working up and chromatography over silica gel with n-heptane/ethyl acetate (3:2), 3.5 g of oily product were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05726305
Source datasetuspto-grants-1998_03
ORD IDord-dd95acbc02174382a8fb617b567ae3bb
Source noteuspto-grants-1998_03